A Service of Leibniz-Informationszentrum econstor Wirtschaft Leibniz Information Centre Make Your Publications Visible. zbw for Economics Laidler, David Working Paper The interactive evolution of economic ideas and experience: The case of Canadian inflation targeting EPRI Working Paper, No. 2015-1 Provided in Cooperation with: Economic Policy Research Institute (EPRI), Department of Economics, University of Western Ontario Suggested Citation: Laidler, David (2015) : The interactive evolution of economic ideas and experience: The case of Canadian inflation targeting, EPRI Working Paper, No. 2015-1, The University of Western Ontario, Economic Policy Research Institute (EPRI), London (Ontario) This Version is available at: http://hdl.handle.net/10419/123489 Standard-Nutzungsbedingungen: Terms of use: Die Dokumente auf EconStor dürfen zu eigenen wissenschaftlichen Documents in EconStor may be saved and copied for your Zwecken und zum Privatgebrauch gespeichert und kopiert werden. personal and scholarly purposes. 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Sofern die Verfasser die Dokumente unter Open-Content-Lizenzen (insbesondere CC-Lizenzen) zur Verfügung gestellt haben sollten, If the documents have been made available under an Open gelten abweichend von diesen Nutzungsbedingungen die in der dort Content Licence (especially Creative Commons Licences), you genannten Lizenz gewährten Nutzungsrechte. may exercise further usage rights as specified in the indicated licence. www.econstor.eu The Interactive Evolution of Economic Ideas and Experience - The Case of Canadian Inflation Targeting by David Laidler Working Paper # 2015-1 July 2015 Economic Policy Research Institute EPRI Working Paper Series Department of Economics Department of Political Science Social Science Centre The University of Western Ontario London, Ontario, N6A 5C2 Canada This working paper is available as a downloadable pdf file on our website http://economics.uwo.ca/epri/ The interactive evolution of economic ideas and experience- The case of Canadian inflation targeting* by David Laidler Abstract: In Canada, targeting the inflation rate was intended as a temporary measure on a journey to price-level stability, but became a well-established monetary policy regime in its own right. This paper analyses the role of the interaction of economic ideas with the experience generated by their application to policy in bringing about this outcome. In the following account, changing beliefs about the stability or otherwise of ongoing inflation, the capacity of a flexible exchange rate to create a vicious circle of depreciation and rising domestic prices, and about the roles played by the natural unemployment rate and money growth in influencing economic outcomes are emphasised. Today’s standard DSGE approach to modelling inflation targeting arrived on the scene only after the Canadian regime was well established. JEL Classifications: B2, E5. Key Words: money, monetary policy, inflation, inflation-targeting, interest rates, unemployment, exchange rate. *A paper presented at the Guggenheim Conference on “Economic Research and Policy Making at the Federal Reserve in historical and international perspective” held at the Graduate Institute in Geneva on June 27th-28th , where the author received the 2015 Thomas Guggenheim Prize for the History of Economic Thought. I am grateful to Arie Arnon and Warren Young for advice about a suitable topic for this occasion. Helpful criticism from Mike Belongia, John Crow, Chuck Freedman, Peter Howitt, Clark Leith, David Longworth, John Murray, Michael Parkin, Finn Poschmann, and Bill Robson on earlier drafts is acknowledged with real gratitude, as are comments from participants in the conference, but anything that the reader finds erroneous, misleading or misjudged in the text that follows is nevertheless my own responsibility. 1 Inflation Targeting Inflation targeting is proving to be durable and popular. It emerged in the early 1990s from a series of specific decisions taken in individual countries to deal with what seemed to be particular local problems, and without any immediately obvious precursors. 1 In one variant or another it has now spread, according to a recent count (Sarwat Jahan 2012), to 28 countries, a total that excludes the United States, where targeting remains informal. The role of economic ideas and events in driving this regime’s development and durability is surely worth some attention. Nowadays, the phrase “inflation targeting”, rather than merely specifying a policy goal, usually signifies a comprehensive policy program, a seamless blend of monetary-policy practice and macroeconomic theory. Its generic characteristics (to be referred to as “the standard model” in what follows) consist of : (i) a well- defined policy target, specifically a quantitative goal (typically, as in the case of Canada, with a band around it) for the rate of change of some price index; (ii) a policy instrument under the control of the central bank, typically a very short-term nominal interest rate; (iii) an explicit dynamic stochastic equilibrium model of the mechanisms linking the behaviour of the target to that of the instrument in question, usually consisting of (a), an expectations augmented Phillips curve, where the deviation of inflation from its expected rate varies with a so-called “output gap”, (b) a function specifying the relationship between aggregate demand and the policy instrument, and (c), a model determining the time path of economy’s productive capacity, which in conjunction with (b) determines the output gap; and (iv) a policy reaction function, often a so-called “Taylor rule” (see e.g. John Taylor 1993), specifying how the central bank does, or should, adjust its policy instrument in the light of information about the current and perhaps forecast behaviour of inflation and the output gap in order to keep the target variable on track. The links between economic ideas and the conduct of inflation-targeting policy are thus extremely close these days, and anyone teaching serious students about this regime would certainly refer them to such basic theoretical works as, for example, Lars Svensson (1999), or Michael Woodford (2003), before turning to a discussion of the idiosyncrasies of any specific real-world examples, either existing or proposed. But it would be wrong to infer from all this that the macroeconomic theory we now associate with inflation targeting was always in the lead in the regime’s historical development over the last quarter century. Inflation targeting’s origins lay in rather different and less rigorous economic ideas, and in many places 1 The nearest precursor is probably the Bank of Sweden’s effort to stabilise the price level (rather than inflation rate) by manipulating the rate of interest for a few years following its abandonment of the gold standard in 1932. See Fisher and Cohrssen (1934) and Lars Jonung (1979) 2 its theory and practice evolved only slowly under the influence of events into today’s configuration. Broad cross-country studies (e.g. Bernanke and Mishkin 1997) of inflation- targeting are both possible and valuable for many purposes, but in this paper I want to focus on a theme whose significance for the place in macroeconomic analysis of the history of economic thought I have explored in the past (see, e.g. Laidler 2003a), namely the recursive interdependence of economic ideas and experience. Here a local narrative is appropriate, so I shall discuss the evolution of a particular inflation targeting regime, namely Canada’s. Because of its emphasis on ideas, what follows is organised as much along thematic as chronological lines, dealing in turn with the evolution in the light of experience of Canadian policy-makers’ beliefs about: price stability as a policy goal and the stability of positive inflation; the exchange rate as a source of price level instability; the natural unemployment rate; the place of the exchange rate in monetary policy’s transmission mechanism; and the role of money growth as a cause and/or indicator of future inflation. Then a few very tentative comments about the current configuration of Canadian monetary policy will be offered, but debates about how the regime might be modified in 2016, when it is next due for renewal or revision, will not be entered. Price Stability or Low Inflation Canada was the second country (after New Zealand) to adopt explicitly quantitative inflation targets. It did so in February 1991 with a joint announcement from the Bank of Canada and the Federal Government in its budget for that year.2 However, this announcement was regarded, by the Bank as much as by local academic and other commentators, not as heralding a new monetary policy regime but as, at most, significantly clarifying the nature and intended future course of one that had first been announced three years earlier, and already had attached to it a widely-used (though never in any communications emanating from the Bank of Canada) label, “zero inflation” (See Richard Lipsey (ed.) 1990). This regime had been launched in a public lecture – specifically a contribution to the University of Alberta’s Eric John Hanson Memorial Lecture Series, entitled “The Work of Canadian Monetary Policy” - delivered on January 18th 1988 by the Bank of 3 Canada’s then newly appointed (1987) Governor, John W. Crow (Crow 1988a). 2 Two co-authored books, David Laidler and William Robson (1993) and (2004) deal respectively with the macroeconomic history of the run-up to and initial implementation of this regime, and the following decade’s experience under it. They also discuss the evolution of the Bank of Canada’s policy thinking and practices over these years. 3 Crow (2002) has written his own account of central banking in Canada, and discusses the evolution of inflation targeting between 1988 and 1993 in Ch. 8 of this book, pp.